Solid-state NMR of Complex Nano- and Microcrystalline Materials

The work in this thesis demonstrates the utility and broad applicability of solid-state nuclear magnetic resonance (SSNMR) spectroscopy to the study of complex materials containing mixtures of multiple structures and/or disparate local environments. Multinuclear SSNMR is particularly well-suited to the characterization of such systems, and can provide a wealth of information that cannot be obtained with other instrumental methods. Studies involving two classes of materials are detailed herein, namely rare-earth nanoparticles and active pharmaceutical ingredients